Smoke-filtering attachment for pipes, &amp;c.



No. 882,913. PATENTED MAR. 24, 1908. G. W. ROWE. SMOKE FILTERING ATTACHMENT FOR PIPES, &0.

APPLICATION FILED MAR. 11,1907.

45 W I I v H), r V I therethrough will always be the same.

' UNITED STATES PATENT oFF oE.

CLAUDE W. ROWE, OF CONCORD, NORTH CAROLINA.

SMOKE-FILTERING ATTACHMENT FOR PIPES, 85c.

inexpensive article which can be readily placed in position. and which constitutes an efficient means for absorbing, nicotin and tobacco dust and which does not retard the flow of smoke to an objectionable extent.

A still further objectis to provide a device of this character which is designed to be dis' carded as soon as it becomes saturatedvwith objectionable accumulations and a new one substituted therefor. I

Heretofore filtering devices of this character have been formed of wads of cotton or other material inserted into the pipe or cigar holder but it has been practically impossible to arrange each wad so that the flow of smolie t has also been found that where cotton or similar material is inserted into a pipe or a cigar holder the smoke tends to pass between the cotton and the wall of the compartment in which it is placed and therefore the efficient results desired can not be obtained. It has also been difficult to remove the wads from the recesses in which they are placed without the provision of some implement such as a wire or the like and, as a result, considerable time has been necessarily consumed in effecting the change.

The present invention is designed to overcome these objectionable results by providing an article of manufacture in the form of a cartridge having a filtering material therein, the end portions of which are provided with spreading means whereby the smoke is prevented from passing between the filtering material and the wall of. the cartridge but must necessarily flow through the filtering material. The cartridge can be readily placed in position upon the inner end of a pipe stem, upon the inner end of the stem of a cigar holder, or upon a cigarette, and all smoke drawn into the .mouth of the user must necessarily pass through the filtering material. When the device becomes saturated with objectionable accumulations it can be readily removed from the objects Specification of Letters Patent. Application filed March 11, 1907. Serial No: 361,779.

Patented March 24, 1908.

upon which it is located and a new one substituted therefor.

The invention consists of certain novel features of construction and combinations of parts which will'be hereinafter more fully describedand pointed out in the claims.

In the accompanying drawings is shown the preferred forms of the invention.

In said drawings: Figure 1 is a section through a pipe having a filtering cartridge therein embodying the present improvements; Fig. 2 is a section through a cigar holder and showing the filtering cartridge in position therein; Fig. 3 is a detail view of the cartridge shown in Figs. 1 and 2, a ortion of said cartridge being broken away; ig. 4 is a section through a modified formof cartridge in position upon a cigarette; Fig. 5 is a section through another modified form of cartridge; and Fig. 6 is a detail view of a holding ring designed to be used with the construction shown in Fig. 5.

' Referring to the figures by characters of Another diaphragm 3 of a similar nature is i I secured transversely within the casing at a point between the ends thereof, the edge of the diaphragm being fastened to the casing in any preferred manner as by affixing the same to the casing with a suitable adhesive. The space between the two diaphragms 2 and 3 is filled with a suitable filtering material 4 which may be in the form of raw cotton.

It is designed to place the herein described cartridges upon the market as articles of manufacture designed to be used in connection with pipes, cigarholders, etc. When it is desired to use the device in a pipe the stem 5 is removed and the open end of the cartridge is slipped onto the nipple 6 so that the cartridge will assume a position therearound and with the filtering portion beyond the inner end of the passage within the stem. The

stem is then replaced within the pipe and the to percolate through the filtering material which will absorb the nicotin and tobacco dust and produce a clean, dry smoke. After the filtering material has become saturated the stem can be removed from the pipe and the cartridge discarded and a new one substituted therefor. As shown in Fig. 2 the cartridge can also be used upon the nipple 8 of the mouth piece 9 of a cigar holder when it will operate in the same manner as heretofore described. This filtering device can also be used as a holder for cigarettes, stogies, etc. in which event the cigarette or stogie is inserted into the open end of the cartridge. If preferred, the cartridge for use in this manner may be constructed as shown in Fig. 4 wherein both of the diaphragms 10 are surrounded by, and located between the ends of the casing 11, the filtering, material 12 being held between the diaphragms. The cigarette 13 can then be inserted into one end of thecasing while the other end thereof can be held in the mouth. As both diaphragms are removed from the ends of thecasin'g neither of them can come in contact with the mouth when the filter is used in this manner. A filter such as shown in Fig. 4 can be made sufficiently durable to permit the same to be used with more than one cigarette, etc. althou h if preferred, said filter can be afiixed to t e cigarette or stogie so as to form an integral part thereof, it being the purpose to discard the filter when the cigarette is consumed.

' Instead of fastening the diaphragms within the casing by means of an adhesive, the edge portions of the diaphragms can be clampedagamstthe inner surface of the casing by means of split rings 14 formed of spring metal. This construction has been shown in Fig15 and one of the rings has been shown in.

modifications can be made in the construction of these cartridges without departing I from the spirit or sacrificing the advantages .of the invention.

seams What is claimed is.

1. The combination with tobacco holding means having a bore extending therethrough, a mouth piece, and a nipple upon the mouth piece projecting into and spaced from the wall of the bore; of a smoke filtering attachment for said holding means and comprising a cylindrical casing disposed within the bore and having one endsurrounding the nipple and fitting snugly thereon, porous diaphragms extending transversely within the casing, and a filtering material interposed between the diaphragms, one of said diaphragms being disposed to spread smoke throughout one end of the filtering tube rior to its passage through said material an the other diaphragm being disposed to spread smoke throughout the other end of the filtering material-and prior to its passage into the nipple.

2. An article of manufacture comprising a tubular casing, porous diaphragms disposed transversely thereon, means surrounded by.

the diaphragms for clamping them against the casing, and a filtering material interposed between and retained by the diaphragms.

3. The combination with tobacco holding means having a bore extending therethrough, amouth piece, and a nipple upon the mouth piece and projecting into and spaced from the wall ofrthe bore; of a smoke filtering attachment comprising a cylindrical casin detachably mounted within the bore and v ing one end detachably surrounding the nipple and fitting snugly thereon, a porous diaphragm disposed transversely of the casing and connected thereto, and a filtering material within the casing and interposed between the diaphragm and nipple.

In testimony that I c aimthe foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

CLAUDE W. ROWE.

Witnesses:

J. Ross CoLHoUN, E. E. DOYLE. 

